Heating Boilers

Heating boilers are designed for heating and warming residential homes, offices and production premises using radiators, underfloor or wall heating, air blowers or other heating elements.
Heating Calculator
Wood Heating Pellet Heating Combined Heating Heating Boiler Maintenance

In a heating boiler, combustion of fuel generates heat which, using a liquid – primarily water – is transferred from the boiler to the room. Circulation of the heated liquid to radiators is usually provided by forced circulation using a circulation pump, or by gravity natural-flow circulation. Heating boilers will create warmth in your home and provide pleasant comfort. Using a heating boiler you will be able to not only heat radiators and underfloor heating, but also prepare hot water in a hot water tank.

Commodus represents the world's leading heating boiler manufacturers, working together on the development of new products and the improvement of existing ones. In our product range you will find the highest quality heating boilers with the latest technological achievements. We will help you choose the most suitable heating boiler for your wishes and possibilities, and will provide advice on the planning and construction of your heating system.

Heating Boiler System Expert

Sandis Ainars

“I have helped create several thousand heating and air-conditioning systems.”

During more than 10 years of experience, Sandis has worked on a wide range of projects — from a 25 m² apartment to a 4,000 m² office building. He highly values the professionalism of his colleagues and knows that by joining forces and working as a team, it is, as he says, “easier to pull the cart”. Sandis is approachable and friendly, always happy to answer any questions about heating and help find the most suitable individual solution.

Wood Heating

Wood Heating

Wood boilers are the most traditional and economical form of heating. They are sometimes referred to as solid fuel boilers, as they are designed for firing with wood, coal or briquettes.

Heating boilers can be manufactured from steel or cast iron. A steel heating boiler has a long flue gas path where heat from the combustion process is transferred to the heating system, thereby providing a high efficiency coefficient and saving fuel. Cast iron heating boilers will have a service life many times longer than steel heating boilers, but in steel boilers the fuel burns with higher efficiency. A steel wood boiler will be easier to clean, thanks to its straight boiler walls.

An important factor when choosing a wood boiler is also its construction – how large the boiler capacity is, what the permissible log length is, how the heat exchangers are arranged, etc. The efficiency of the heating boiler will depend on these parameters. For practically any wood heating boiler, it is possible to install a pellet burner in the future, thereby obtaining a practically automated form of heating (combined heating boiler).

Pellet Heating

Pellet Heating

Combined Heating

Combined Heating

Combined heating boilers are designed for firing with firewood, wood chip briquettes and coal, or in automatic mode using 6–8 mm wood chip pellets. Depending on the boiler model, when firing in manual mode the burner will need to be dismantled, or it may be possible to leave it connected to the boiler. Heating boilers can be made from steel or cast iron (see explanation under solid fuel heating boilers). If you have additionally purchased replacement boiler doors on which a pellet burner is installed, when firing in manual mode it will be possible to dismantle the burner together with the door and install the replacement boiler door.

By installing a pellet burner, you will be able to give up constant firing and boiler monitoring – simply set the heating water or room temperature, and the pellet burner will take care of the rest.

Heating Boiler Maintenance

Heating Boiler Maintenance

Commodus boiler service offers preventive heating boiler maintenance. By performing maintenance you will ensure optimal and efficient heating boiler operation, allowing you to save money and extending the heating boiler service life. Our professional and experienced technicians will carry out maintenance of pellet, solid fuel, and pellet/wood boilers.

For our existing customers we offer annual heating boiler and system maintenance, thereby providing a warranty of up to 10 years! Without annual preventive maintenance – warranty is 2 years.

Heating boiler and system maintenance includes:

  • Heating boiler body diagnostics
  • Heating boiler flue connection inspection and cleaning
  • Heating boiler technical condition inspection and adjustment
  • Heating boiler recirculation pipework and heating system technical condition inspection, filter cleaning
  • Heating boiler instrument panel inspection and adjustment
  • Heating boiler mechanism inspection and adjustment
  • Pellet burner and burner system technical condition inspection and adjustment (for pellet boilers, pellet/wood boilers)
  • Heating boiler cleaning
  • Repeat usage training
  • Ignition coil inspection, metal replacement
  • Compressor condensate water draining
  • Software update
  • Error check
  • Pellet feeder calibration, pellet weighing

Pellet heating boiler maintenance costs:

OPOP Biopel 10-40kW - 110EUR + VAT (if coil replacement needed + 35EUR)

OPOP Biopel, Woody 60-80kW – 130EUR+VAT (if coil replacement needed + 35EUR)

OPOP BIOPEL 100-200kW – 160EUR+VAT (if coil replacement needed + 35EUR)

OPOP BlackStar – 110EUR + VAT (if coil replacement needed + 35EUR)

NBE BlackStar+ - 110EUR+VAT

NBE RTB 10-30kW – 140EUR+VAT

NBE RTB 50 – 160EUR+VAT

NBE RTB 80-100kW – 180EUR+VAT

Mareli Systems SBN, Onyx Hydro and pellet fireplaces – 85EUR+VAT

Repair/diagnostics call-out (if not a warranty case):

  • For equipment with annual maintenance:

Transport 0.30EUR/km + 50EUR/h work on site

  • Equipment purchased from COMMODUS or partner dealers but without annual maintenance:

Transport 0.50EUR/km + 60EUR/h work on site

  • Equipment not purchased from COMMODUS:

Transport 0.50EUR/km + 90EUR/h work on site.

For repair call-outs outside working hours, from 20:00–08:00 and on weekends, a coefficient of +50% applies.